Fix netsim page cycler.
Fix netsim page cycler.

It appears runisolatedtest.py already escapes arguments with spaces. So this
was causing double escaping.

See:
http://build.chromium.org/p/chromium.perf/builders/Linux%20Perf%20%283%29/builds/9202/steps/top_10_netsim/logs/stdio

Review URL: https://chromiumcodereview.appspot.com/23523032

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@221811 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build